Repozytorium publikacji - Politechnika Gdańska

This paper proposes the use of barycentric coordinates in the development and implementationof space-vector pulse-width modulation (SVPWM) methods, especially for inverters with deformed space-vector diagrams. The proposed approach is capable of explicit calculation of vector duty cycles, independentof whether they assume ideal positions or are displaced due to the DC-link voltage imbalance. The use ofbarycentric coordinates also permits a well-defined and universal approach to the problem of identifyingthe region in which the reference vector is located. It completely avoids the use of angles, trigonometricfunctions, and inverse trigonometric functions and is chiefly based on matrix operations which are well suitedfor digital signal processor implementation. The proposed approach is exposed and validated for the specialcase of three-level neutral-point clamped (NPC) inverter controlled by a discontinuous space-vector PWM.

Autorzy

• dr hab. inż. Paweł Szczepankowski link otwiera się w nowej karcie ,
• prof. dr hab. inż. Janusz Nieznański link otwiera się w nowej karcie